Calculate Porosity - Sonic Log - Raymer et al. (1980)

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Porosity - Sonic Log- Raymer et al. (1980)

Other way to calculate sonic derived porosity is through the Raymer-Hunt-Gardner (RHG) equation (Raymer et al., 1980), which calculate it using matrix and sonic log values, and it is expressed the following way:

Where:
• ɸs= sonic-derived porosity
• Δtma= interval transit time in the matrix
• Δtlog= interval transit time in the formation

Calculate Sonic Derived Porosity - Raymer et al. (1980)
Δtlog: µs/ft		Δtma: µs/ft

Made by Henry Herrera